Amended Statement of Ownership (sc 13g/a)
February 14 2017 - 5:59PM
Edgar (US Regulatory)
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act
of 1934
(Amendment No. 4)*
ACHILLION PHARMACEUTICALS, INC.
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(Name of Issuer)
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Common Stock, $0.001 par value per share
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(Title of Class of Securities)
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December 31, 2016
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(Date of Event Which Requires Filing of this Statement)
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Check the appropriate box to designate the rule pursuant to
which this Schedule is filed:
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¨
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Rule 13d-1(b)
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x
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Rule 13d-1(c)
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¨
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Rule 13d-1(d)
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*The remainder of this cover page shall
be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.
The information required in the remainder
of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act
of 1934 (“
Act
”) or otherwise subject to the liabilities of that section of the Act but shall be subject
to all other provisions of the Act (however, see the Notes).
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1.
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Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities
only).
RA Capital Healthcare Fund, L.P.
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2.
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Check the Appropriate Box if a Member of a Group
(See Instructions)
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(a)
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¨
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(b)
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¨
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3.
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SEC Use Only
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4.
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Citizenship or Place of Organization
Delaware
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Number of
Shares
Beneficially
Owned by
Each Reporting
Person With
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5.
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Sole Voting Power
0
shares
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6.
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Shared Voting Power
0
shares
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7.
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Sole Dispositive Power
0
shares
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8.
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Shared Dispositive Power
0
shares
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9.
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Aggregate Amount Beneficially Owned by Each Reporting
Person
0 shares
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10.
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Check if the Aggregate Amount in Row (9) Excludes
Certain Shares (See Instructions)
¨
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11.
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Percent of Class Represented by Amount in Row (9)
0.0%
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12.
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Type of Reporting Person (See Instructions)
PN (Limited Partnership)
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Item 1.
(a)
Name
of Issuer:
Achillion Pharmaceuticals, Inc. (the “Issuer”).
(b)
Address
of the Issuer’s Principal Executive Offices:
300 George Street, New Haven, CT 06511.
Item 2.
(a)
Name
of Person Filing:
This statement on Schedule 13G is being filed by and RA Capital Healthcare Fund, L.P. (the “Fund”).
The Fund is referred to herein as the “Reporting Person.”
(b)
Address
of Principal Business Office:
The principal business office of the Reporting Persons is c/o RA Capital Management, LLC, 20
Park Plaza, Suite 1200, Boston, MA 02116.
(c)
Citizenship:
The Fund is a Delaware limited partnership.
(d)
Title
and Class of Securities:
Common stock (“Common Stock”)
(e)
CUSIP
Number:
00448Q201
Item 3. If
this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
Not applicable.
Item 4. Ownership:
Provide the following information regarding
the aggregate number and percentage of the class of securities of the issuer identified in Item 1.
(a)
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Amount Beneficially Owned:
See the response(s) to Item 9 on the attached cover
page(s).
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(b)
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Percent of Class:
See the response(s) to Item 11 on the attached cover
page(s).
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(c)
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Number of shares as to which such person has:
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(i)
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sole power to vote or to direct the vote:
See the response(s) to Item 5 on the attached cover
page(s).
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(ii)
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shared power to vote or to direct the vote
See the response(s) to Item 6 on the attached cover
page(s).
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(iii)
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sole power to dispose or to direct the disposition
of
See the response(s) to Item 7 on the attached cover
page(s).
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(iv)
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shared power to dispose or to direct the disposition
of
See the response(s) to Item 8 on the attached cover
page(s).
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Item 5. Ownership
of Five Percent or Less of a Class:
If this statement is being filed to report the fact that as
of the date hereof the Reporting Person has ceased to be the beneficial owner of more than five percent of the class of securities,
check the following
x
.
Item 6.
Ownership of More than Five Percent on Behalf of Another Person:
Not applicable.
Item 7. Identification
and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person:
Not applicable.
Item 8. Identification
and Classification of Members of the Group:
Not applicable.
Item 9. Notice
of Dissolution of Group:
Not applicable.
Item 10. Certification:
By signing below I hereby certify that,
to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of
or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held
in connection with or as a participant in any transaction having that purpose or effect.
SIGNATURE
After reasonable inquiry
and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
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Date: F
ebruary 14
,
2017
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RA CAPITAL HEALTHCARE FUND, L.P.
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By: RA Capital Management, LLC
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Its: General Partner
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By: /s/ Rajeev Shah
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Rajeev Shah
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Authorized Signatory
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